<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>属性选择器</title>
    <style>
        [type=text] {
            color: red;
        }
    </style>
</head>
<body>
    <form action="http://www.baidu.com/s">
        <input>
        <input type="text" name="wd" >
        <input type="submit" value="百度一下">
    </form>
    
</body>
</html>